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The Case of the Mystery Cruise

Mary-Kate and Ashley are at Sea World with the parents, who are hard at work creating a computer program that will let humans speak with dolphins. The twins can't seem to find a mystery — until they stumble upon a mysterious body and a Lady in Black who leads them on a wild goose chase!

  • Format
  • paperback
  • Pages
  • 80
  • Language
  • english
  • ISBN
  • 9780590863704
  • Genres
  • mystery, childrens, juvenile
  • Release date
  • 1996